Types: The Targeted Radiotherapy Drug market is segmented by molecular mechanisms, with alpha emitters (22%) and beta emitters (50%) forming the core. Alpha emitters, such as radium-223, are prioritized for bone-seeking tumors due to their high energy and short penetration range. Beta emitters, including lutetium-177, dominate broader oncology settings, targeting neuroendocrine tumors and lymphomas. Peptide-based therapies (15%) and antibody-drug conjugates (13%) represent emerging subtypes, leveraging targeted delivery for precision. The remaining 10% includes other isotopes and experimental modalities. Type-specific innovation, regulatory approvals, and clinical trial pipelines directly influence market share, with beta emitters currently leading due to mature commercialization and established reimbursement frameworks.